Handpiece



FIG. 1 is a side perspective view of a handpiece, showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a left side view thereof, the right side view (not shown) being a mirror image of the left side view.

The broken lines are included for the purpose of illustrating environmental structure and form no part of the claimed design. 

CLAIM The ornamental design for a handpiece, as shown and described. 